3. Write a program in C to copy a sentence in reverse order and replace lowercase characters by uppercase and vice-versa. Test Data: !tujz NI TNEDUTS LANOITANRETNI NA MAI Expected Output: copy a sentence in reverse order: Input the string : Itujz NI TNEDUTS LANOITANRETNI NA MAI Copied the string in reverse order : I am an International student in ZJUT